甘油锌的悬浮法合成及热稳定性能研究  

Research on Synthesis and Thermal Stability of Zinc Glycerol by Suspension Method

作　　者：黄雪萍 彭静 陈维洪 蒋殿君 孔振兴 HUANG Xue-ping;PENG Jing;CHEN Wei-hong;JIANG Dian-jun;KONG Zhen-xing(Industrial Technology Incubation Center,Guangdong Academy of Sciences,Guangzhou 510650,China;Institute of Rare Metals,Guangdong Academy of Sciences,Guangzhou 510650,China)

机构地区：[1]广东省科学院产业技术育成中心,广东广州510650 [2]广东省科学院资源利用与稀土开发研究所,广东广州510650

出　　处：《塑料科技》2021年第9期91-95,共5页Plastics Science and Technology

基　　金：国家重点研发计划(2019YFC1904504);广东省自然科学基金(2018A030313237);广州市科技计划项目(201902010025;201803030044)。

摘　　要：通过悬浮法制备甘油锌,并对甘油锌进行表征。研究氧化锌与甘油摩尔比、催化剂乙酸(HAc)用量、稳定剂种类及用量、非质子溶剂对甘油锌产率及锌含量的影响。将悬浮法甘油锌作为聚氯乙烯(PVC)的热稳定剂,采用热老化法及刚果红法探究甘油锌对PVC热稳定性的影响。结果表明:优化条件下反应可控性较好,产品质量良好,锌含量符合理论值。悬浮法甘油锌的热稳定性与商品甘油锌相类似,高于硬脂酸锌。优化条件下,甘油锌可以延长PVC的刚果红变色时间,热老化试验保持无色时间从0增加至20 min。Zinc glycerol was prepared by suspension method and was characterized.The effects of molar ratio of zinc oxide to glycerol,dosage of catalyst acetic acid(HAc),type and dosage of stabilizer,and aprotic solvent on the yield and zinc content of zinc glycerol were studied.The suspension method prepared zinc glycerol was used as the thermal stabilizer of polyvinyl chloride(PVC).The effects of zinc glycerol on the thermal stability of PVC were investigated by thermal aging and Congo red method.The results show that under the optimized conditions,the reaction controllability is good,the product quality is good,and the zinc content conforms to the theoretical value.The thermal stability of zinc glycerol prepared by suspension method is similar to that of commercial zinc glycerol,which is higher than that of zinc stearate.Under the optimized conditions,zinc glycerol could prolong the Congo red discoloration time of PVC,and the colorless time of thermal aging test is increased from 0 to 20 min.

关 键 词：甘油锌 悬浮法 热稳定剂 聚氯乙烯 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]